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-From: Landen Chao <landen.chao@mediatek.com>
-To: Ryder Lee <ryder.lee@mediatek.com>, Weijie Gao <weijie.gao@mediatek.com>,
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-CC: <frank-w@public-files.de>, <steven.liu@mediatek.com>,
- <landen.chao@mediatek.com>, <mark-mc.lee@mediatek.com>
-Subject: [U-Boot 1/1] eth: mtk-eth: add mt7531 switch support in mediatek eth
- driver
-Date: Tue, 18 Feb 2020 16:49:37 +0800
-Message-ID: <f10c8e2e72fda3ac9d8d240b128f28c52cf06f3f.1582015221.git.landen.chao@mediatek.com>
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-
-mt7531 is a 7-ports switch with 5 embedded giga phys, and uses the same
-MAC design of mt7530. The cpu port6 supports SGMII only. The cpu port5
-supports RGMII or SGMII in different model.
-
-mt7531 is connected to mt7622 via both RGMII and SGMII interfaces.
-In this patch, mt7531 cpu port5 or port6 is configured to maximum
-capability to align CPU MAC setting.
-
-The dts has been committed in the commit 6efa450565cdc ("arm: dts:
-mediatek: add ethernet and sgmii dts node for mt7622")
-
-Signed-off-by: Landen Chao <landen.chao@mediatek.com>
-Tested-by: Frank Wunderlich <frank-w@public-files.de>
----
- drivers/net/mtk_eth.c | 580 +++++++++++++++++++++++++++++++++---------
- drivers/net/mtk_eth.h | 124 ++++++++-
- 2 files changed, 577 insertions(+), 127 deletions(-)
-
-diff --git a/drivers/net/mtk_eth.c b/drivers/net/mtk_eth.c
-index edfa5d1ce8..f7d34a2e6b 100644
---- a/drivers/net/mtk_eth.c
-+++ b/drivers/net/mtk_eth.c
-@@ -30,10 +30,12 @@
- #define RX_TOTAL_BUF_SIZE (NUM_RX_DESC * PKTSIZE_ALIGN)
- #define TOTAL_PKT_BUF_SIZE (TX_TOTAL_BUF_SIZE + RX_TOTAL_BUF_SIZE)
-
--#define MT7530_NUM_PHYS 5
--#define MT7530_DFL_SMI_ADDR 31
-+#define MT753X_NUM_PHYS 5
-+#define MT753X_NUM_PORTS 7
-+#define MT753X_DFL_SMI_ADDR 31
-+#define MT753X_SMI_ADDR_MASK 0x1f
-
--#define MT7530_PHY_ADDR(base, addr) \
-+#define MT753X_PHY_ADDR(base, addr) \
- (((base) + (addr)) & 0x1f)
-
- #define GDMA_FWD_TO_CPU \
-@@ -131,7 +133,8 @@ struct pdma_txdesc {
-
- enum mtk_switch {
- SW_NONE,
-- SW_MT7530
-+ SW_MT7530,
-+ SW_MT7531
- };
-
- enum mtk_soc {
-@@ -173,8 +176,8 @@ struct mtk_eth_priv {
-
- enum mtk_switch sw;
- int (*switch_init)(struct mtk_eth_priv *priv);
-- u32 mt7530_smi_addr;
-- u32 mt7530_phy_base;
-+ u32 mt753x_smi_addr;
-+ u32 mt753x_phy_base;
-
- struct gpio_desc rst_gpio;
- int mcm;
-@@ -349,6 +352,174 @@ static int mtk_mmd_ind_write(struct mtk_eth_priv *priv, u8 addr, u8 devad,
- return priv->mii_write(priv, addr, MII_MMD_ADDR_DATA_REG, val);
- }
-
-+/*
-+ * MT7530 Internal Register Address Bits
-+ * -------------------------------------------------------------------
-+ * | 15 14 13 12 11 10 9 8 7 6 | 5 4 3 2 | 1 0 |
-+ * |----------------------------------------|---------------|--------|
-+ * | Page Address | Reg Address | Unused |
-+ * -------------------------------------------------------------------
-+ */
-+
-+static int mt753x_reg_read(struct mtk_eth_priv *priv, u32 reg, u32 *data)
-+{
-+ int ret, low_word, high_word;
-+
-+ /* Write page address */
-+ ret = mtk_mii_write(priv, priv->mt753x_smi_addr, 0x1f, reg >> 6);
-+ if (ret)
-+ return ret;
-+
-+ /* Read low word */
-+ low_word = mtk_mii_read(priv, priv->mt753x_smi_addr, (reg >> 2) & 0xf);
-+ if (low_word < 0)
-+ return low_word;
-+
-+ /* Read high word */
-+ high_word = mtk_mii_read(priv, priv->mt753x_smi_addr, 0x10);
-+ if (high_word < 0)
-+ return high_word;
-+
-+ if (data)
-+ *data = ((u32)high_word << 16) | (low_word & 0xffff);
-+
-+ return 0;
-+}
-+
-+static int mt753x_reg_write(struct mtk_eth_priv *priv, u32 reg, u32 data)
-+{
-+ int ret;
-+
-+ /* Write page address */
-+ ret = mtk_mii_write(priv, priv->mt753x_smi_addr, 0x1f, reg >> 6);
-+ if (ret)
-+ return ret;
-+
-+ /* Write low word */
-+ ret = mtk_mii_write(priv, priv->mt753x_smi_addr, (reg >> 2) & 0xf,
-+ data & 0xffff);
-+ if (ret)
-+ return ret;
-+
-+ /* Write high word */
-+ return mtk_mii_write(priv, priv->mt753x_smi_addr, 0x10, data >> 16);
-+}
-+
-+static void mt753x_reg_rmw(struct mtk_eth_priv *priv, u32 reg, u32 clr,
-+ u32 set)
-+{
-+ u32 val;
-+
-+ mt753x_reg_read(priv, reg, &val);
-+ val &= ~clr;
-+ val |= set;
-+ mt753x_reg_write(priv, reg, val);
-+}
-+
-+/* Indirect MDIO clause 22/45 access */
-+static int mt7531_mii_rw(struct mtk_eth_priv *priv, int phy, int reg, u16 data,
-+ u32 cmd, u32 st)
-+{
-+ ulong timeout;
-+ u32 val, timeout_ms;
-+ int ret = 0;
-+
-+ val = (st << MDIO_ST_S) |
-+ ((cmd << MDIO_CMD_S) & MDIO_CMD_M) |
-+ ((phy << MDIO_PHY_ADDR_S) & MDIO_PHY_ADDR_M) |
-+ ((reg << MDIO_REG_ADDR_S) & MDIO_REG_ADDR_M);
-+
-+ if (cmd == MDIO_CMD_WRITE || cmd == MDIO_CMD_ADDR)
-+ val |= data & MDIO_RW_DATA_M;
-+
-+ mt753x_reg_write(priv, MT7531_PHY_IAC, val | PHY_ACS_ST);
-+
-+ timeout_ms = 100;
-+ timeout = get_timer(0);
-+ while (1) {
-+ mt753x_reg_read(priv, MT7531_PHY_IAC, &val);
-+
-+ if ((val & PHY_ACS_ST) == 0)
-+ break;
-+
-+ if (get_timer(timeout) > timeout_ms)
-+ return -ETIMEDOUT;
-+ }
-+
-+ if (cmd == MDIO_CMD_READ || cmd == MDIO_CMD_READ_C45) {
-+ mt753x_reg_read(priv, MT7531_PHY_IAC, &val);
-+ ret = val & MDIO_RW_DATA_M;
-+ }
-+
-+ return ret;
-+}
-+
-+static int mt7531_mii_ind_read(struct mtk_eth_priv *priv, u8 phy, u8 reg)
-+{
-+ u8 phy_addr;
-+
-+ if (phy >= MT753X_NUM_PHYS)
-+ return -EINVAL;
-+
-+ phy_addr = MT753X_PHY_ADDR(priv->mt753x_phy_base, phy);
-+
-+ return mt7531_mii_rw(priv, phy_addr, reg, 0, MDIO_CMD_READ,
-+ MDIO_ST_C22);
-+}
-+
-+static int mt7531_mii_ind_write(struct mtk_eth_priv *priv, u8 phy, u8 reg,
-+ u16 val)
-+{
-+ u8 phy_addr;
-+
-+ if (phy >= MT753X_NUM_PHYS)
-+ return -EINVAL;
-+
-+ phy_addr = MT753X_PHY_ADDR(priv->mt753x_phy_base, phy);
-+
-+ return mt7531_mii_rw(priv, phy_addr, reg, val, MDIO_CMD_WRITE,
-+ MDIO_ST_C22);
-+}
-+
-+int mt7531_mmd_ind_read(struct mtk_eth_priv *priv, u8 addr, u8 devad, u16 reg)
-+{
-+ u8 phy_addr;
-+ int ret;
-+
-+ if (addr >= MT753X_NUM_PHYS)
-+ return -EINVAL;
-+
-+ phy_addr = MT753X_PHY_ADDR(priv->mt753x_phy_base, addr);
-+
-+ ret = mt7531_mii_rw(priv, phy_addr, devad, reg, MDIO_CMD_ADDR,
-+ MDIO_ST_C45);
-+ if (ret)
-+ return ret;
-+
-+ return mt7531_mii_rw(priv, phy_addr, devad, 0, MDIO_CMD_READ_C45,
-+ MDIO_ST_C45);
-+}
-+
-+static int mt7531_mmd_ind_write(struct mtk_eth_priv *priv, u8 addr, u8 devad,
-+ u16 reg, u16 val)
-+{
-+ u8 phy_addr;
-+ int ret;
-+
-+ if (addr >= MT753X_NUM_PHYS)
-+ return 0;
-+
-+ phy_addr = MT753X_PHY_ADDR(priv->mt753x_phy_base, addr);
-+
-+ ret = mt7531_mii_rw(priv, phy_addr, devad, reg, MDIO_CMD_ADDR,
-+ MDIO_ST_C45);
-+ if (ret)
-+ return ret;
-+
-+ return mt7531_mii_rw(priv, phy_addr, devad, val, MDIO_CMD_WRITE,
-+ MDIO_ST_C45);
-+}
-+
- static int mtk_mdio_read(struct mii_dev *bus, int addr, int devad, int reg)
- {
- struct mtk_eth_priv *priv = bus->priv;
-@@ -387,6 +558,12 @@ static int mtk_mdio_register(struct udevice *dev)
- priv->mmd_read = mtk_mmd_ind_read;
- priv->mmd_write = mtk_mmd_ind_write;
- break;
-+ case SW_MT7531:
-+ priv->mii_read = mt7531_mii_ind_read;
-+ priv->mii_write = mt7531_mii_ind_write;
-+ priv->mmd_read = mt7531_mmd_ind_read;
-+ priv->mmd_write = mt7531_mmd_ind_write;
-+ break;
- default:
- priv->mii_read = mtk_mii_read;
- priv->mii_write = mtk_mii_write;
-@@ -410,75 +587,18 @@ static int mtk_mdio_register(struct udevice *dev)
- return 0;
- }
-
--/*
-- * MT7530 Internal Register Address Bits
-- * -------------------------------------------------------------------
-- * | 15 14 13 12 11 10 9 8 7 6 | 5 4 3 2 | 1 0 |
-- * |----------------------------------------|---------------|--------|
-- * | Page Address | Reg Address | Unused |
-- * -------------------------------------------------------------------
-- */
--
--static int mt7530_reg_read(struct mtk_eth_priv *priv, u32 reg, u32 *data)
-+static int mt753x_core_reg_read(struct mtk_eth_priv *priv, u32 reg)
- {
-- int ret, low_word, high_word;
-+ u8 phy_addr = MT753X_PHY_ADDR(priv->mt753x_phy_base, 0);
-
-- /* Write page address */
-- ret = mtk_mii_write(priv, priv->mt7530_smi_addr, 0x1f, reg >> 6);
-- if (ret)
-- return ret;
--
-- /* Read low word */
-- low_word = mtk_mii_read(priv, priv->mt7530_smi_addr, (reg >> 2) & 0xf);
-- if (low_word < 0)
-- return low_word;
--
-- /* Read high word */
-- high_word = mtk_mii_read(priv, priv->mt7530_smi_addr, 0x10);
-- if (high_word < 0)
-- return high_word;
--
-- if (data)
-- *data = ((u32)high_word << 16) | (low_word & 0xffff);
--
-- return 0;
-+ return priv->mmd_read(priv, phy_addr, 0x1f, reg);
- }
-
--static int mt7530_reg_write(struct mtk_eth_priv *priv, u32 reg, u32 data)
-+static void mt753x_core_reg_write(struct mtk_eth_priv *priv, u32 reg, u32 val)
- {
-- int ret;
--
-- /* Write page address */
-- ret = mtk_mii_write(priv, priv->mt7530_smi_addr, 0x1f, reg >> 6);
-- if (ret)
-- return ret;
-+ u8 phy_addr = MT753X_PHY_ADDR(priv->mt753x_phy_base, 0);
-
-- /* Write low word */
-- ret = mtk_mii_write(priv, priv->mt7530_smi_addr, (reg >> 2) & 0xf,
-- data & 0xffff);
-- if (ret)
-- return ret;
--
-- /* Write high word */
-- return mtk_mii_write(priv, priv->mt7530_smi_addr, 0x10, data >> 16);
--}
--
--static void mt7530_reg_rmw(struct mtk_eth_priv *priv, u32 reg, u32 clr,
-- u32 set)
--{
-- u32 val;
--
-- mt7530_reg_read(priv, reg, &val);
-- val &= ~clr;
-- val |= set;
-- mt7530_reg_write(priv, reg, val);
--}
--
--static void mt7530_core_reg_write(struct mtk_eth_priv *priv, u32 reg, u32 val)
--{
-- u8 phy_addr = MT7530_PHY_ADDR(priv->mt7530_phy_base, 0);
--
-- mtk_mmd_ind_write(priv, phy_addr, 0x1f, reg, val);
-+ priv->mmd_write(priv, phy_addr, 0x1f, reg, val);
- }
-
- static int mt7530_pad_clk_setup(struct mtk_eth_priv *priv, int mode)
-@@ -496,46 +616,46 @@ static int mt7530_pad_clk_setup(struct mtk_eth_priv *priv, int mode)
- }
-
- /* Disable MT7530 core clock */
-- mt7530_core_reg_write(priv, CORE_TRGMII_GSW_CLK_CG, 0);
-+ mt753x_core_reg_write(priv, CORE_TRGMII_GSW_CLK_CG, 0);
-
- /* Disable MT7530 PLL */
-- mt7530_core_reg_write(priv, CORE_GSWPLL_GRP1,
-+ mt753x_core_reg_write(priv, CORE_GSWPLL_GRP1,
- (2 << RG_GSWPLL_POSDIV_200M_S) |
- (32 << RG_GSWPLL_FBKDIV_200M_S));
-
- /* For MT7530 core clock = 500Mhz */
-- mt7530_core_reg_write(priv, CORE_GSWPLL_GRP2,
-+ mt753x_core_reg_write(priv, CORE_GSWPLL_GRP2,
- (1 << RG_GSWPLL_POSDIV_500M_S) |
- (25 << RG_GSWPLL_FBKDIV_500M_S));
-
- /* Enable MT7530 PLL */
-- mt7530_core_reg_write(priv, CORE_GSWPLL_GRP1,
-+ mt753x_core_reg_write(priv, CORE_GSWPLL_GRP1,
- (2 << RG_GSWPLL_POSDIV_200M_S) |
- (32 << RG_GSWPLL_FBKDIV_200M_S) |
- RG_GSWPLL_EN_PRE);
-
- udelay(20);
-
-- mt7530_core_reg_write(priv, CORE_TRGMII_GSW_CLK_CG, REG_GSWCK_EN);
-+ mt753x_core_reg_write(priv, CORE_TRGMII_GSW_CLK_CG, REG_GSWCK_EN);
-
- /* Setup the MT7530 TRGMII Tx Clock */
-- mt7530_core_reg_write(priv, CORE_PLL_GROUP5, ncpo1);
-- mt7530_core_reg_write(priv, CORE_PLL_GROUP6, 0);
-- mt7530_core_reg_write(priv, CORE_PLL_GROUP10, ssc_delta);
-- mt7530_core_reg_write(priv, CORE_PLL_GROUP11, ssc_delta);
-- mt7530_core_reg_write(priv, CORE_PLL_GROUP4, RG_SYSPLL_DDSFBK_EN |
-+ mt753x_core_reg_write(priv, CORE_PLL_GROUP5, ncpo1);
-+ mt753x_core_reg_write(priv, CORE_PLL_GROUP6, 0);
-+ mt753x_core_reg_write(priv, CORE_PLL_GROUP10, ssc_delta);
-+ mt753x_core_reg_write(priv, CORE_PLL_GROUP11, ssc_delta);
-+ mt753x_core_reg_write(priv, CORE_PLL_GROUP4, RG_SYSPLL_DDSFBK_EN |
- RG_SYSPLL_BIAS_EN | RG_SYSPLL_BIAS_LPF_EN);
-
-- mt7530_core_reg_write(priv, CORE_PLL_GROUP2,
-+ mt753x_core_reg_write(priv, CORE_PLL_GROUP2,
- RG_SYSPLL_EN_NORMAL | RG_SYSPLL_VODEN |
- (1 << RG_SYSPLL_POSDIV_S));
-
-- mt7530_core_reg_write(priv, CORE_PLL_GROUP7,
-+ mt753x_core_reg_write(priv, CORE_PLL_GROUP7,
- RG_LCDDS_PCW_NCPO_CHG | (3 << RG_LCCDS_C_S) |
- RG_LCDDS_PWDB | RG_LCDDS_ISO_EN);
-
- /* Enable MT7530 core clock */
-- mt7530_core_reg_write(priv, CORE_TRGMII_GSW_CLK_CG,
-+ mt753x_core_reg_write(priv, CORE_TRGMII_GSW_CLK_CG,
- REG_GSWCK_EN | REG_TRGMIICK_EN);
-
- return 0;
-@@ -551,46 +671,33 @@ static int mt7530_setup(struct mtk_eth_priv *priv)
- mtk_ethsys_rmw(priv, ETHSYS_CLKCFG0_REG,
- ETHSYS_TRGMII_CLK_SEL362_5, 0);
-
-- /* Global reset switch */
-- if (priv->mcm) {
-- reset_assert(&priv->rst_mcm);
-- udelay(1000);
-- reset_deassert(&priv->rst_mcm);
-- mdelay(1000);
-- } else if (dm_gpio_is_valid(&priv->rst_gpio)) {
-- dm_gpio_set_value(&priv->rst_gpio, 0);
-- udelay(1000);
-- dm_gpio_set_value(&priv->rst_gpio, 1);
-- mdelay(1000);
-- }
--
- /* Modify HWTRAP first to allow direct access to internal PHYs */
-- mt7530_reg_read(priv, HWTRAP_REG, &val);
-+ mt753x_reg_read(priv, HWTRAP_REG, &val);
- val |= CHG_TRAP;
- val &= ~C_MDIO_BPS;
-- mt7530_reg_write(priv, MHWTRAP_REG, val);
-+ mt753x_reg_write(priv, MHWTRAP_REG, val);
-
- /* Calculate the phy base address */
- val = ((val & SMI_ADDR_M) >> SMI_ADDR_S) << 3;
-- priv->mt7530_phy_base = (val | 0x7) + 1;
-+ priv->mt753x_phy_base = (val | 0x7) + 1;
-
- /* Turn off PHYs */
-- for (i = 0; i < MT7530_NUM_PHYS; i++) {
-- phy_addr = MT7530_PHY_ADDR(priv->mt7530_phy_base, i);
-+ for (i = 0; i < MT753X_NUM_PHYS; i++) {
-+ phy_addr = MT753X_PHY_ADDR(priv->mt753x_phy_base, i);
- phy_val = priv->mii_read(priv, phy_addr, MII_BMCR);
- phy_val |= BMCR_PDOWN;
- priv->mii_write(priv, phy_addr, MII_BMCR, phy_val);
- }
-
- /* Force MAC link down before reset */
-- mt7530_reg_write(priv, PCMR_REG(5), FORCE_MODE);
-- mt7530_reg_write(priv, PCMR_REG(6), FORCE_MODE);
-+ mt753x_reg_write(priv, PMCR_REG(5), FORCE_MODE);
-+ mt753x_reg_write(priv, PMCR_REG(6), FORCE_MODE);
-
- /* MT7530 reset */
-- mt7530_reg_write(priv, SYS_CTRL_REG, SW_SYS_RST | SW_REG_RST);
-+ mt753x_reg_write(priv, SYS_CTRL_REG, SW_SYS_RST | SW_REG_RST);
- udelay(100);
-
-- val = (1 << IPG_CFG_S) |
-+ val = (IPG_96BIT_WITH_SHORT_IPG << IPG_CFG_S) |
- MAC_MODE | FORCE_MODE |
- MAC_TX_EN | MAC_RX_EN |
- BKOFF_EN | BACKPR_EN |
-@@ -598,53 +705,280 @@ static int mt7530_setup(struct mtk_eth_priv *priv)
- FORCE_DPX | FORCE_LINK;
-
- /* MT7530 Port6: Forced 1000M/FD, FC disabled */
-- mt7530_reg_write(priv, PCMR_REG(6), val);
-+ mt753x_reg_write(priv, PMCR_REG(6), val);
-
- /* MT7530 Port5: Forced link down */
-- mt7530_reg_write(priv, PCMR_REG(5), FORCE_MODE);
-+ mt753x_reg_write(priv, PMCR_REG(5), FORCE_MODE);
-
- /* MT7530 Port6: Set to RGMII */
-- mt7530_reg_rmw(priv, MT7530_P6ECR, P6_INTF_MODE_M, P6_INTF_MODE_RGMII);
-+ mt753x_reg_rmw(priv, MT7530_P6ECR, P6_INTF_MODE_M, P6_INTF_MODE_RGMII);
-
- /* Hardware Trap: Enable Port6, Disable Port5 */
-- mt7530_reg_read(priv, HWTRAP_REG, &val);
-+ mt753x_reg_read(priv, HWTRAP_REG, &val);
- val |= CHG_TRAP | LOOPDET_DIS | P5_INTF_DIS |
- (P5_INTF_SEL_GMAC5 << P5_INTF_SEL_S) |
- (P5_INTF_MODE_RGMII << P5_INTF_MODE_S);
- val &= ~(C_MDIO_BPS | P6_INTF_DIS);
-- mt7530_reg_write(priv, MHWTRAP_REG, val);
-+ mt753x_reg_write(priv, MHWTRAP_REG, val);
-
- /* Setup switch core pll */
- mt7530_pad_clk_setup(priv, priv->phy_interface);
-
- /* Lower Tx Driving for TRGMII path */
- for (i = 0 ; i < NUM_TRGMII_CTRL ; i++)
-- mt7530_reg_write(priv, MT7530_TRGMII_TD_ODT(i),
-+ mt753x_reg_write(priv, MT7530_TRGMII_TD_ODT(i),
- (8 << TD_DM_DRVP_S) | (8 << TD_DM_DRVN_S));
-
- for (i = 0 ; i < NUM_TRGMII_CTRL; i++)
-- mt7530_reg_rmw(priv, MT7530_TRGMII_RD(i), RD_TAP_M, 16);
-+ mt753x_reg_rmw(priv, MT7530_TRGMII_RD(i), RD_TAP_M, 16);
-+
-+ /* Turn on PHYs */
-+ for (i = 0; i < MT753X_NUM_PHYS; i++) {
-+ phy_addr = MT753X_PHY_ADDR(priv->mt753x_phy_base, i);
-+ phy_val = priv->mii_read(priv, phy_addr, MII_BMCR);
-+ phy_val &= ~BMCR_PDOWN;
-+ priv->mii_write(priv, phy_addr, MII_BMCR, phy_val);
-+ }
-+
-+ return 0;
-+}
-+
-+static void mt7531_core_pll_setup(struct mtk_eth_priv *priv, int mcm)
-+{
-+ /* Step 1 : Disable MT7531 COREPLL */
-+ mt753x_reg_rmw(priv, MT7531_PLLGP_EN, EN_COREPLL, 0);
-+
-+ /* Step 2: switch to XTAL output */
-+ mt753x_reg_rmw(priv, MT7531_PLLGP_EN, SW_CLKSW, SW_CLKSW);
-+
-+ mt753x_reg_rmw(priv, MT7531_PLLGP_CR0, RG_COREPLL_EN, 0);
-+
-+ /* Step 3: disable PLLGP and enable program PLLGP */
-+ mt753x_reg_rmw(priv, MT7531_PLLGP_EN, SW_PLLGP, SW_PLLGP);
-+
-+ /* Step 4: program COREPLL output frequency to 500MHz */
-+ mt753x_reg_rmw(priv, MT7531_PLLGP_CR0, RG_COREPLL_POSDIV_M,
-+ 2 << RG_COREPLL_POSDIV_S);
-+ udelay(25);
-+
-+ /* Currently, support XTAL 25Mhz only */
-+ mt753x_reg_rmw(priv, MT7531_PLLGP_CR0, RG_COREPLL_SDM_PCW_M,
-+ 0x140000 << RG_COREPLL_SDM_PCW_S);
-+
-+ /* Set feedback divide ratio update signal to high */
-+ mt753x_reg_rmw(priv, MT7531_PLLGP_CR0, RG_COREPLL_SDM_PCW_CHG,
-+ RG_COREPLL_SDM_PCW_CHG);
-+
-+ /* Wait for at least 16 XTAL clocks */
-+ udelay(10);
-+
-+ /* Step 5: set feedback divide ratio update signal to low */
-+ mt753x_reg_rmw(priv, MT7531_PLLGP_CR0, RG_COREPLL_SDM_PCW_CHG, 0);
-+
-+ /* add enable 325M clock for SGMII */
-+ mt753x_reg_write(priv, MT7531_ANA_PLLGP_CR5, 0xad0000);
-+
-+ /* add enable 250SSC clock for RGMII */
-+ mt753x_reg_write(priv, MT7531_ANA_PLLGP_CR2, 0x4f40000);
-+
-+ /*Step 6: Enable MT7531 PLL */
-+ mt753x_reg_rmw(priv, MT7531_PLLGP_CR0, RG_COREPLL_EN, RG_COREPLL_EN);
-+
-+ mt753x_reg_rmw(priv, MT7531_PLLGP_EN, EN_COREPLL, EN_COREPLL);
-+
-+ udelay(25);
-+}
-+
-+static int mt7531_port_sgmii_init(struct mtk_eth_priv *priv,
-+ u32 port)
-+{
-+ if (port != 5 && port != 6) {
-+ printf("mt7531: port %d is not a SGMII port\n", port);
-+ return -EINVAL;
-+ }
-+
-+ /* Set SGMII GEN2 speed(2.5G) */
-+ mt753x_reg_rmw(priv, MT7531_PHYA_CTRL_SIGNAL3(port),
-+ SGMSYS_SPEED_2500, SGMSYS_SPEED_2500);
-+
-+ /* Disable SGMII AN */
-+ mt753x_reg_rmw(priv, MT7531_PCS_CONTROL_1(port),
-+ SGMII_AN_ENABLE, 0);
-+
-+ /* SGMII force mode setting */
-+ mt753x_reg_write(priv, MT7531_SGMII_MODE(port), SGMII_FORCE_MODE);
-+
-+ /* Release PHYA power down state */
-+ mt753x_reg_rmw(priv, MT7531_QPHY_PWR_STATE_CTRL(port),
-+ SGMII_PHYA_PWD, 0);
-+
-+ return 0;
-+}
-+
-+static int mt7531_port_rgmii_init(struct mtk_eth_priv *priv, u32 port)
-+{
-+ u32 val;
-+
-+ if (port != 5) {
-+ printf("error: RGMII mode is not available for port %d\n",
-+ port);
-+ return -EINVAL;
-+ }
-+
-+ mt753x_reg_read(priv, MT7531_CLKGEN_CTRL, &val);
-+ val |= GP_CLK_EN;
-+ val &= ~GP_MODE_M;
-+ val |= GP_MODE_RGMII << GP_MODE_S;
-+ val |= TXCLK_NO_REVERSE;
-+ val |= RXCLK_NO_DELAY;
-+ val &= ~CLK_SKEW_IN_M;
-+ val |= CLK_SKEW_IN_NO_CHANGE << CLK_SKEW_IN_S;
-+ val &= ~CLK_SKEW_OUT_M;
-+ val |= CLK_SKEW_OUT_NO_CHANGE << CLK_SKEW_OUT_S;
-+ mt753x_reg_write(priv, MT7531_CLKGEN_CTRL, val);
-+
-+ return 0;
-+}
-+
-+static void mt7531_phy_setting(struct mtk_eth_priv *priv)
-+{
-+ int i;
-+ u32 val;
-+
-+ for (i = 0; i < MT753X_NUM_PHYS; i++) {
-+ /* Enable HW auto downshift */
-+ priv->mii_write(priv, i, 0x1f, 0x1);
-+ val = priv->mii_read(priv, i, PHY_EXT_REG_14);
-+ val |= PHY_EN_DOWN_SHFIT;
-+ priv->mii_write(priv, i, PHY_EXT_REG_14, val);
-+
-+ /* PHY link down power saving enable */
-+ val = priv->mii_read(priv, i, PHY_EXT_REG_17);
-+ val |= PHY_LINKDOWN_POWER_SAVING_EN;
-+ priv->mii_write(priv, i, PHY_EXT_REG_17, val);
-+
-+ val = priv->mmd_read(priv, i, 0x1e, PHY_DEV1E_REG_0C6);
-+ val &= ~PHY_POWER_SAVING_M;
-+ val |= PHY_POWER_SAVING_TX << PHY_POWER_SAVING_S;
-+ priv->mmd_write(priv, i, 0x1e, PHY_DEV1E_REG_0C6, val);
-+ }
-+}
-+
-+static int mt7531_setup(struct mtk_eth_priv *priv)
-+{
-+ u16 phy_addr, phy_val;
-+ u32 val;
-+ u32 pmcr;
-+ u32 port5_sgmii;
-+ int i;
-+
-+ priv->mt753x_phy_base = (priv->mt753x_smi_addr + 1) &
-+ MT753X_SMI_ADDR_MASK;
-+
-+ /* Turn off PHYs */
-+ for (i = 0; i < MT753X_NUM_PHYS; i++) {
-+ phy_addr = MT753X_PHY_ADDR(priv->mt753x_phy_base, i);
-+ phy_val = priv->mii_read(priv, phy_addr, MII_BMCR);
-+ phy_val |= BMCR_PDOWN;
-+ priv->mii_write(priv, phy_addr, MII_BMCR, phy_val);
-+ }
-+
-+ /* Force MAC link down before reset */
-+ mt753x_reg_write(priv, PMCR_REG(5), FORCE_MODE_LNK);
-+ mt753x_reg_write(priv, PMCR_REG(6), FORCE_MODE_LNK);
-+
-+ /* Switch soft reset */
-+ mt753x_reg_write(priv, SYS_CTRL_REG, SW_SYS_RST | SW_REG_RST);
-+ udelay(100);
-+
-+ /* Enable MDC input Schmitt Trigger */
-+ mt753x_reg_rmw(priv, MT7531_SMT0_IOLB, SMT_IOLB_5_SMI_MDC_EN,
-+ SMT_IOLB_5_SMI_MDC_EN);
-+
-+ mt7531_core_pll_setup(priv, priv->mcm);
-+
-+ mt753x_reg_read(priv, MT7531_TOP_SIG_SR, &val);
-+ port5_sgmii = !!(val & PAD_DUAL_SGMII_EN);
-+
-+ /* port5 support either RGMII or SGMII, port6 only support SGMII. */
-+ switch (priv->phy_interface) {
-+ case PHY_INTERFACE_MODE_RGMII:
-+ if (!port5_sgmii)
-+ mt7531_port_rgmii_init(priv, 5);
-+ break;
-+ case PHY_INTERFACE_MODE_SGMII:
-+ mt7531_port_sgmii_init(priv, 6);
-+ if (port5_sgmii)
-+ mt7531_port_sgmii_init(priv, 5);
-+ break;
-+ default:
-+ break;
-+ }
-+
-+ pmcr = MT7531_FORCE_MODE |
-+ (IPG_96BIT_WITH_SHORT_IPG << IPG_CFG_S) |
-+ MAC_MODE | MAC_TX_EN | MAC_RX_EN |
-+ BKOFF_EN | BACKPR_EN |
-+ FORCE_RX_FC | FORCE_TX_FC |
-+ (SPEED_1000M << FORCE_SPD_S) | FORCE_DPX |
-+ FORCE_LINK;
-+
-+ mt753x_reg_write(priv, PMCR_REG(5), pmcr);
-+ mt753x_reg_write(priv, PMCR_REG(6), pmcr);
-
- /* Turn on PHYs */
-- for (i = 0; i < MT7530_NUM_PHYS; i++) {
-- phy_addr = MT7530_PHY_ADDR(priv->mt7530_phy_base, i);
-+ for (i = 0; i < MT753X_NUM_PHYS; i++) {
-+ phy_addr = MT753X_PHY_ADDR(priv->mt753x_phy_base, i);
- phy_val = priv->mii_read(priv, phy_addr, MII_BMCR);
- phy_val &= ~BMCR_PDOWN;
- priv->mii_write(priv, phy_addr, MII_BMCR, phy_val);
- }
-
-+ mt7531_phy_setting(priv);
-+
-+ /* Enable Internal PHYs */
-+ val = mt753x_core_reg_read(priv, CORE_PLL_GROUP4);
-+ val |= MT7531_BYPASS_MODE;
-+ val &= ~MT7531_POWER_ON_OFF;
-+ mt753x_core_reg_write(priv, CORE_PLL_GROUP4, val);
-+
-+ return 0;
-+}
-+
-+int mt753x_switch_init(struct mtk_eth_priv *priv)
-+{
-+ int ret;
-+ int i;
-+
-+ /* Global reset switch */
-+ if (priv->mcm) {
-+ reset_assert(&priv->rst_mcm);
-+ udelay(1000);
-+ reset_deassert(&priv->rst_mcm);
-+ mdelay(1000);
-+ } else if (dm_gpio_is_valid(&priv->rst_gpio)) {
-+ dm_gpio_set_value(&priv->rst_gpio, 0);
-+ udelay(1000);
-+ dm_gpio_set_value(&priv->rst_gpio, 1);
-+ mdelay(1000);
-+ }
-+
-+ ret = priv->switch_init(priv);
-+ if (ret)
-+ return ret;
-+
- /* Set port isolation */
-- for (i = 0; i < 8; i++) {
-+ for (i = 0; i < MT753X_NUM_PORTS; i++) {
- /* Set port matrix mode */
- if (i != 6)
-- mt7530_reg_write(priv, PCR_REG(i),
-+ mt753x_reg_write(priv, PCR_REG(i),
- (0x40 << PORT_MATRIX_S));
- else
-- mt7530_reg_write(priv, PCR_REG(i),
-+ mt753x_reg_write(priv, PCR_REG(i),
- (0x3f << PORT_MATRIX_S));
-
- /* Set port mode to user port */
-- mt7530_reg_write(priv, PVC_REG(i),
-+ mt753x_reg_write(priv, PVC_REG(i),
- (0x8100 << STAG_VPID_S) |
- (VLAN_ATTR_USER << VLAN_ATTR_S));
- }
-@@ -658,7 +992,7 @@ static void mtk_phy_link_adjust(struct mtk_eth_priv *priv)
- u8 flowctrl;
- u32 mcr;
-
-- mcr = (1 << IPG_CFG_S) |
-+ mcr = (IPG_96BIT_WITH_SHORT_IPG << IPG_CFG_S) |
- (MAC_RX_PKT_LEN_1536 << MAC_RX_PKT_LEN_S) |
- MAC_MODE | FORCE_MODE |
- MAC_TX_EN | MAC_RX_EN |
-@@ -803,7 +1137,7 @@ static void mtk_mac_init(struct mtk_eth_priv *priv)
- ge_mode << SYSCFG0_GE_MODE_S(priv->gmac_id));
-
- if (priv->force_mode) {
-- mcr = (1 << IPG_CFG_S) |
-+ mcr = (IPG_96BIT_WITH_SHORT_IPG << IPG_CFG_S) |
- (MAC_RX_PKT_LEN_1536 << MAC_RX_PKT_LEN_S) |
- MAC_MODE | FORCE_MODE |
- MAC_TX_EN | MAC_RX_EN |
-@@ -1050,7 +1384,7 @@ static int mtk_eth_probe(struct udevice *dev)
- return mtk_phy_probe(dev);
-
- /* Initialize switch */
-- return priv->switch_init(priv);
-+ return mt753x_switch_init(priv);
- }
-
- static int mtk_eth_remove(struct udevice *dev)
-@@ -1159,7 +1493,11 @@ static int mtk_eth_ofdata_to_platdata(struct udevice *dev)
- if (!strcmp(str, "mt7530")) {
- priv->sw = SW_MT7530;
- priv->switch_init = mt7530_setup;
-- priv->mt7530_smi_addr = MT7530_DFL_SMI_ADDR;
-+ priv->mt753x_smi_addr = MT753X_DFL_SMI_ADDR;
-+ } else if (!strcmp(str, "mt7531")) {
-+ priv->sw = SW_MT7531;
-+ priv->switch_init = mt7531_setup;
-+ priv->mt753x_smi_addr = MT753X_DFL_SMI_ADDR;
- } else {
- printf("error: unsupported switch\n");
- return -EINVAL;
-diff --git a/drivers/net/mtk_eth.h b/drivers/net/mtk_eth.h
-index 9bb037d440..f2940c9996 100644
---- a/drivers/net/mtk_eth.h
-+++ b/drivers/net/mtk_eth.h
-@@ -34,7 +34,9 @@
-
- /* SGMII subsystem config registers */
- #define SGMSYS_PCS_CONTROL_1 0x0
-+#define SGMII_LINK_STATUS BIT(18)
- #define SGMII_AN_ENABLE BIT(12)
-+#define SGMII_AN_RESTART BIT(9)
-
- #define SGMSYS_SGMII_MODE 0x20
- #define SGMII_FORCE_MODE 0x31120019
-@@ -139,6 +141,11 @@
- #define FORCE_DPX BIT(1)
- #define FORCE_LINK BIT(0)
-
-+/* Values of IPG_CFG */
-+#define IPG_96BIT 0
-+#define IPG_96BIT_WITH_SHORT_IPG 1
-+#define IPG_64BIT 2
-+
- /* MAC_RX_PKT_LEN: Max RX packet length */
- #define MAC_RX_PKT_LEN_1518 0
- #define MAC_RX_PKT_LEN_1536 1
-@@ -178,17 +185,73 @@
- #define VLAN_ATTR_TRANSLATION 2
- #define VLAN_ATTR_TRANSPARENT 3
-
--#define PCMR_REG(p) (0x3000 + (p) * 0x100)
--/* XXX: all fields are defined under GMAC_PORT_MCR */
--
-+#define PMCR_REG(p) (0x3000 + (p) * 0x100)
-+/* XXX: all fields of MT7530 are defined under GMAC_PORT_MCR
-+ * MT7531 specific fields are defined below
-+ */
-+#define FORCE_MODE_EEE1G BIT(25)
-+#define FORCE_MODE_EEE100 BIT(26)
-+#define FORCE_MODE_TX_FC BIT(27)
-+#define FORCE_MODE_RX_FC BIT(28)
-+#define FORCE_MODE_DPX BIT(29)
-+#define FORCE_MODE_SPD BIT(30)
-+#define FORCE_MODE_LNK BIT(31)
-+#define MT7531_FORCE_MODE FORCE_MODE_EEE1G | FORCE_MODE_EEE100 |\
-+ FORCE_MODE_TX_FC | FORCE_MODE_RX_FC | \
-+ FORCE_MODE_DPX | FORCE_MODE_SPD | \
-+ FORCE_MODE_LNK
-+
-+/* MT7531 SGMII Registers */
-+#define MT7531_SGMII_REG_BASE 0x5000
-+#define MT7531_SGMII_REG_PORT_BASE 0x1000
-+#define MT7531_SGMII_REG(p, r) (MT7531_SGMII_REG_BASE + \
-+ (p) * MT7531_SGMII_REG_PORT_BASE + (r))
-+#define MT7531_PCS_CONTROL_1(p) MT7531_SGMII_REG(((p) - 5), 0x00)
-+#define MT7531_SGMII_MODE(p) MT7531_SGMII_REG(((p) - 5), 0x20)
-+#define MT7531_QPHY_PWR_STATE_CTRL(p) MT7531_SGMII_REG(((p) - 5), 0xe8)
-+#define MT7531_PHYA_CTRL_SIGNAL3(p) MT7531_SGMII_REG(((p) - 5), 0x128)
-+/* XXX: all fields of MT7531 SGMII are defined under SGMSYS */
-+
-+/* MT753x System Control Register */
- #define SYS_CTRL_REG 0x7000
- #define SW_PHY_RST BIT(2)
- #define SW_SYS_RST BIT(1)
- #define SW_REG_RST BIT(0)
-
--#define NUM_TRGMII_CTRL 5
-+/* MT7531 */
-+#define MT7531_PHY_IAC 0x701c
-+/* XXX: all fields are defined under GMAC_PIAC_REG */
-+
-+#define MT7531_CLKGEN_CTRL 0x7500
-+#define CLK_SKEW_OUT_S 8
-+#define CLK_SKEW_OUT_M 0x300
-+#define CLK_SKEW_IN_S 6
-+#define CLK_SKEW_IN_M 0xc0
-+#define RXCLK_NO_DELAY BIT(5)
-+#define TXCLK_NO_REVERSE BIT(4)
-+#define GP_MODE_S 1
-+#define GP_MODE_M 0x06
-+#define GP_CLK_EN BIT(0)
-+
-+/* Values of GP_MODE */
-+#define GP_MODE_RGMII 0
-+#define GP_MODE_MII 1
-+#define GP_MODE_REV_MII 2
-+
-+/* Values of CLK_SKEW_IN */
-+#define CLK_SKEW_IN_NO_CHANGE 0
-+#define CLK_SKEW_IN_DELAY_100PPS 1
-+#define CLK_SKEW_IN_DELAY_200PPS 2
-+#define CLK_SKEW_IN_REVERSE 3
-+
-+/* Values of CLK_SKEW_OUT */
-+#define CLK_SKEW_OUT_NO_CHANGE 0
-+#define CLK_SKEW_OUT_DELAY_100PPS 1
-+#define CLK_SKEW_OUT_DELAY_200PPS 2
-+#define CLK_SKEW_OUT_REVERSE 3
-
- #define HWTRAP_REG 0x7800
-+/* MT7530 Modified Hardware Trap Status Registers */
- #define MHWTRAP_REG 0x7804
- #define CHG_TRAP BIT(16)
- #define LOOPDET_DIS BIT(14)
-@@ -222,6 +285,8 @@
- #define P6_INTF_MODE_RGMII 0
- #define P6_INTF_MODE_TRGMII 1
-
-+#define NUM_TRGMII_CTRL 5
-+
- #define MT7530_TRGMII_RD(n) (0x7a10 + (n) * 8)
- #define RD_TAP_S 0
- #define RD_TAP_M 0x7f
-@@ -229,8 +294,34 @@
- #define MT7530_TRGMII_TD_ODT(n) (0x7a54 + (n) * 8)
- /* XXX: all fields are defined under GMAC_TRGMII_TD_ODT */
-
--/* MT7530 GPHY MDIO Indirect Access Registers */
-+/* TOP Signals Status Register */
-+#define MT7531_TOP_SIG_SR 0x780c
-+#define PAD_MCM_SMI_EN BIT(0)
-+#define PAD_DUAL_SGMII_EN BIT(1)
-+
-+/* MT7531 PLLGP Registers */
-+#define MT7531_PLLGP_EN 0x7820
-+#define EN_COREPLL BIT(2)
-+#define SW_CLKSW BIT(1)
-+#define SW_PLLGP BIT(0)
-+
-+#define MT7531_PLLGP_CR0 0x78a8
-+#define RG_COREPLL_EN BIT(22)
-+#define RG_COREPLL_POSDIV_S 23
-+#define RG_COREPLL_POSDIV_M 0x3800000
-+#define RG_COREPLL_SDM_PCW_S 1
-+#define RG_COREPLL_SDM_PCW_M 0x3ffffe
-+#define RG_COREPLL_SDM_PCW_CHG BIT(0)
-+
-+/* MT7531 RGMII and SGMII PLL clock */
-+#define MT7531_ANA_PLLGP_CR2 0x78b0
-+#define MT7531_ANA_PLLGP_CR5 0x78bc
-+
-+/* MT7531 GPIO GROUP IOLB SMT0 Control */
-+#define MT7531_SMT0_IOLB 0x7f04
-+#define SMT_IOLB_5_SMI_MDC_EN BIT(5)
-
-+/* MT7530 GPHY MDIO Indirect Access Registers */
- #define MII_MMD_ACC_CTL_REG 0x0d
- #define MMD_CMD_S 14
- #define MMD_CMD_M 0xc000
-@@ -246,7 +337,6 @@
- #define MII_MMD_ADDR_DATA_REG 0x0e
-
- /* MT7530 GPHY MDIO MMD Registers */
--
- #define CORE_PLL_GROUP2 0x401
- #define RG_SYSPLL_EN_NORMAL BIT(15)
- #define RG_SYSPLL_VODEN BIT(14)
-@@ -254,6 +344,8 @@
- #define RG_SYSPLL_POSDIV_M 0x60
-
- #define CORE_PLL_GROUP4 0x403
-+#define MT7531_BYPASS_MODE BIT(4)
-+#define MT7531_POWER_ON_OFF BIT(5)
- #define RG_SYSPLL_DDSFBK_EN BIT(12)
- #define RG_SYSPLL_BIAS_EN BIT(11)
- #define RG_SYSPLL_BIAS_LPF_EN BIT(10)
-@@ -298,4 +390,24 @@
- #define REG_GSWCK_EN BIT(0)
- #define REG_TRGMIICK_EN BIT(1)
-
-+/* Extend PHY Control Register 3 */
-+#define PHY_EXT_REG_14 0x14
-+
-+/* Fields of PHY_EXT_REG_14 */
-+#define PHY_EN_DOWN_SHFIT BIT(4)
-+
-+/* Extend PHY Control Register 4 */
-+#define PHY_EXT_REG_17 0x17
-+
-+/* Fields of PHY_EXT_REG_17 */
-+#define PHY_LINKDOWN_POWER_SAVING_EN BIT(4)
-+
-+/* PHY RXADC Control Register 7 */
-+#define PHY_DEV1E_REG_0C6 0x0c6
-+
-+/* Fields of PHY_DEV1E_REG_0C6 */
-+#define PHY_POWER_SAVING_S 8
-+#define PHY_POWER_SAVING_M 0x300
-+#define PHY_POWER_SAVING_TX 0x0
-+
- #endif /* _MTK_ETH_H_ */
projects / openwrt / staging / lynxis.git / commitdiff